Run results for: Remove all children from DOM element-1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Remove lastChild

11.3M/s

Remove firstChild

11.3M/s

firstChild.remove

11.2M/s

lastChild.remove

11.1M/s

replaceChildren

4.7M/s

View exact numbers

Test name	Executions per second
✓ Remove lastChild	11,330,780 Ops/sec
Remove firstChild	11,330,552 Ops/sec
firstChild.remove	11,191,942 Ops/sec
lastChild.remove	11,119,986 Ops/sec
replaceChildren	4,680,686 Ops/sec

HTML Preparation code:

<div id='messages'></div>

Script Preparation code:

const html = [];
for(i=0; i<1000; i++) {
	html.push("<span>Text</span>");
}
document.getElementById("messages").insertAdjacentHTML('beforeend', html)

Tests:

Remove firstChild
let list = document.getElementById("messages"); while (list.firstChild) { list.removeChild(list.firstChild); }
Remove lastChild
let list = document.getElementById("messages"); while (list.firstChild) { list.removeChild(list.lastChild); }
firstChild.remove
let list = document.getElementById("messages"); while (list.firstChild) { list.firstChild.remove(); }
lastChild.remove
let list = document.getElementById("messages"); while (list.lastChild) { list.lastChild.remove(); }
replaceChildren
let list = document.getElementById("messages"); list.replaceChildren();